Citation: J. Wallander et al., Genetic and social monogamy - Does it occur without mate guarding in the ringed plover?, ETHOLOGY, 107(7), 2001, pp. 561-572
Citation: D. Blomqvist et Oc. Johansson, A comment on successive clutches and breeding system in Lapwings Vanellus vanellus, IBIS, 142(2), 2000, pp. 323-323